Kencmcintyre’s link is dead, but if you go to Historic Aerial’s website and type in “Route 30 Devon, Pennsylvania”, you’ll find the drive-in theatre, beginning in 1957. According to Kerry Segrave’s book ‘Drive-In Theaters: A History from Their Inception in 1933’, the inventor of the drive-in, Richard M. Hollingshead, Jr., and his wife lived close to this theatre, and they sometimes visited it to watch movies.